Switch from intra- to intermolecular h-bonds by ultrasound: induced gelation and distinct nanoscale morphologies
文献类型：期刊论文
| 作者 | Wang, Yaobing; Zhan, Chuanlang; Fu, Hongbing1; Li, Xiao; Sheng, Xiaohai; Zhao, Yonasheng; Xiao, Debao; Ma, Ying; Ma, Jin Shi; Yao, Jiannian |
| 刊名 | Langmuir
 |
| 出版日期 | 2008-08-05 |
| 卷号 | 24期号:15页码:7635-7638 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la801499y |
| 通讯作者 | Fu, hongbing(hongbing.fu@iccas.ac.cn) |
| 英文摘要 | During cooling of the (r)-n-fmoc-octylglycine (fmoc-og)/cycloliexane solution, gelation is observed exclusively when ultrasound is used as an external stimulus, while deposit is obtained without sonication. the xerogel consists of entangled fibrous network made by interconnected nanofibers, while the deposit comprises large numbers of unbranched nanowires. it is found that the fmoc-og molecules form bilayer structures in both the deposit and the gel. however, the ratio (r) between the fmoc-og molecules in a stable intrarnolecular h-bonding conformation and those in a metastable intermolecular h-bonding conformation can be tuned by the ultrasound, r (deposit) > r (gel). the increased population of the intermolecular h-bonding fmoc-og molecules induced by the ultrasonication facilitates to the interconnection of nanofibers for the formation of the fibrous network, and therefore gelation. the alteration in the morphologies and properties of the obtained nanomaterials induced by the ultrasound wave demonstrates a potential method for smart controlling of the functions of nanomaterials from the molecular level. |
| WOS关键词 | SOL-GEL TRANSITION ; PI-STACKED POLYMER ; FUNCTIONAL MATERIALS ; CIRCULAR-DICHROISM ; ORGANIC FLUIDS ; ORGANOGELS ; MOLECULES ; NANOSTRUCTURES ; SYSTEM |
| WOS研究方向 | Chemistry ; Materials Science |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000258034500003 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2384566 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fu, Hongbing |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yaobing,Zhan, Chuanlang,Fu, Hongbing,et al. Switch from intra- to intermolecular h-bonds by ultrasound: induced gelation and distinct nanoscale morphologies[J]. Langmuir,2008,24(15):7635-7638. |
| APA | Wang, Yaobing.,Zhan, Chuanlang.,Fu, Hongbing.,Li, Xiao.,Sheng, Xiaohai.,...&Yao, Jiannian.(2008).Switch from intra- to intermolecular h-bonds by ultrasound: induced gelation and distinct nanoscale morphologies.Langmuir,24(15),7635-7638. |
| MLA | Wang, Yaobing,et al."Switch from intra- to intermolecular h-bonds by ultrasound: induced gelation and distinct nanoscale morphologies".Langmuir 24.15(2008):7635-7638. |
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来源：中国科学院大学
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